0053 Fluorite, Pyrite, Siderite, Renison Bell Mine, North Dundas, Zeehan district, West Coast municipality, Tasmania May 15, 2023 Pendleton Australasia Australia Tasmania Colourless fluorite cubes that fluoresce blue under longwave ultraviolet, partially coated with siderite. Tiny pyrite crystals also present. Width of view 11.5mm. Click on the images below for a higher resolution version. Longwave Ultraviolet White Light
England United Kingdom 4625 Volkovskite, Boulby Mine, Loftus, North Yorkshire, England October 5, 2019
Australasia Australia New South Wales 1793 Calcite, Goethite, Kyogle, New South Wales November 28, 2021
Cornwall England United Kingdom ncat JP1473 Cassiterite, Wheal Phoenix (Cornwall Great United Mines), Phoenix United Mine, Minions, Linkinhorne, Cornwall, England, UK October 8, 2019
United Kingdom Wales ncat JP3461 Celsian, Pyrolusite, Benallt Mine (Tyddyn Meirion mine; Ty Canol mine), Rhiw, Llanfaelrhys, Lleyn Peninsula, Gwynedd, Wales, UK October 8, 2019